I have made a first release of the CrystalBlend binary (for windows only). This is really a very preliminary version. It maybe supports only 20% of what the Game Engine can do so it is not usable at all as a replacement of the Game Engine unless you have very simple needs. Also this is only the stand-alone version and it still uses the old sensor/actuator logic system. The binary can read in principle every .blend file. One demo .blend file is included. Check out the readme.txt that comes with it. Note that you need pretty good 3D hardware to see the 'goodhardware' version